Papiso ea melemo le mathata a ho sebelisa sodium carbonate kapa sodium hydroxide ho lokisa boleng ba pH bakeng sa metsi a fepang boiler

1, metsi a fepa ka boiler ho fetola boleng ba pH ba lebaka

Matsatsing ana, boholo ba liboiler Chaena li sebelisa metsi a sa fetoheng a minerale kapa a sodium ion resin exchange metsi a nolofalitsoeng, metsi a sa fetoheng a minerale kapa a sodium ion resin exchange metsi a nolofalitsoeng boleng ba pH bo tlase haholo ebile bo na le asiti, metsi a sa fetoheng a minerale a reverse osmosis pH hangata ke 5-6, metsi a nolofalitsoeng a sodium ion resin exchange pH hangata ke 5.5-7.5, e le ho rarolla ho bola ha phepelo ea metsi a nang le asiti ho liboiler le liphaephe, Ho ea ka lipehelo tsa standard ea naha ea BG/T1576-2008, boleng ba pH ba metsi a boiler a indasteri bo pakeng tsa 7-9 'me boleng ba pH ba metsi a sa fetoheng bo pakeng tsa 8-9.5, kahoo phepelo ea metsi a boiler e hloka ho fetola boleng ba pH.

2, molao-motheo oa motheo oa ho eketsa sodium carbonate metsing a fepa ka boiler ho lokisa boleng ba pH

Sodium carbonate e tsebahala haholo ka hore ke soda, molora oa soda, molora oa soda, alkali e hlatsoang, e arotsoe ka letsoai, eseng alkali, foromo ea lik'hemik'hale Na2CO3, tlas'a maemo a tloaelehileng bakeng sa phofo e tšoeu kapa letsoai le lesesaane. Molao-motheo oa motheo oa ho eketsa sodium carbonate metsing a fepang boiler ho lokisa boleng ba pH ke ho sebelisa sodium carbonate ho qhibiliha ka metsing le ho ba alkaline, e ka fokotsang carbon dioxide metsing a fepang a acid le ho rarolla ho bola ha metsi a nolofalitsoeng a acid kapa metsi a letsoai boiler le phaepheng. Sodium carbonate ke electrolyte e fokolang, e qhibilihisitsoeng ka metsing ho etsa tharollo ea buffer ea sodium carbonate le sodium bicarbonate, ho na le ho leka-lekana ha electrolytic ka har'a tharollo, ka tšebeliso ea hydroxide ea electrolytic, ho leka-lekana ho tla tsoela pele ho ea ka ho le letona, kahoo pH e teng karabelong ha e fetohe haholo.

Mokhoa oa hydrolysis ea mantlha ea sodium carbonate:

Na2CO3 Sodium carbonate +H2O metsi = NaHCO3 sodium bicarbonate +NaOH sodium hydroxide

Mokhoa oa hydrolysis ea bobeli ea sodium carbonate:

NaHCO3 sodium bicarbonate +H2O metsi = H2CO3 carbonic acid +NaOH sodium hydroxide

Tekanyo ea ion e nang le hydrolyzed ea mantlha ea sodium carbonate:

(CO3) 2-carbonic acid + H2O metsi = HCO3- bicarbonate + OH- hydroxide

Tekanyo ea ion ea hydrolyzed ea bobeli ea sodium carbonate:

HCO3- bicarbonate + H2O metsi = H2CO3 carbonic acid + OH- hydroxide

3, molao-motheo oa motheo oa ho eketsa sodium hydroxide metsing a boiler ho lokisa boleng ba pH

Sodium hydroxide e boetse e bitsoa caustic soda, caustic soda, caustic soda, caustic soda, hangata e tšoeu, khemikhale ea NaOH, sodium hydroxide e na le alkaline e matla, e senyang haholo.

Tekanyo ea ionization bakeng sa sodium hydroxide: NaOH=Na++OH-

Ho eketsa sodium hydroxide metsing a boiler ho ka tsitsisa filimi e sireletsang holim'a tšepe, ho ntlafatsa boleng ba pH ba metsi a fepang boiler le metsi a ontong, e le ho rarolla ho bola ha metsi a nolofalitsoeng ke asiti kapa metsi a sa hloekisoang holim'a boiler le phaephe, le ho sireletsa lisebelisoa tsa tšepe ho ho bola.

4. Melemo le mathata a ho sebelisa sodium carbonate kapa sodium hydroxide ho lokisa boleng ba pH bakeng sa metsi a fepang boiler a bapisoa.

4.1 Lebelo la ho phahamisa boleng ba pH ka sodium carbonate le sodium hydroxide bakeng sa metsi a fepang boiler le nako ea ho boloka phello ea ts'ebeliso li fapane.

Lebelo la ho eketsa sodium carbonate phepelong ea metsi a boiler ho eketsa boleng ba pH le lieha ho feta la sodium hydroxide. Hobane sodium carbonate e hlahisa tharollo ea buffer, e na le phetoho e nyane 'me e tsitsitse ebile e bonolo ho e lokisa. Leha ho le joalo, mefuta ea phetoho ea pH e lekanyelitsoe. Ha ho lokisoa boleng bo tšoanang ba pH, bongata ba sodium carbonate bo tla ba boholo ho feta ba sodium hydroxide. Phello ea tšebeliso e bolokoa nako e telele, 'me pH ea metsi ha e bonolo ho e theola.

Sodium hydroxide ke motheo o matla le electrolyte e matla, sodium hydroxide ho lokisa boleng ba pH ba ho feto-fetoha ha maemo ke e kholo, sodium hydroxide kamora ho eketsa pH ea metsi ho bonolo ho e eketsa, ho lokisa boleng ba pH ka potlako le ka ho toba haholoanyane, empa hape ho bonolo ho e liha ho ke ke ha beha ho hongata haholo, ha ho bapisoa le sodium carbonate ho eketsa hanyane ho ka fihlela litlhoko tsa index ea pH, ke hore, leha boleng ba pH ea sodium hydroxide bo eketsehile, Leha ho le joalo, bongata ba sodium hydroxide e ekelitsoeng ha bo boholo, ke hore, bokhoni ba metsi ba ho fokotsa acid ea sehlopha sa hydroxide ha bo eketsehe haholo, pH e tla theoha haufinyane.

4.2 Kotsi e bakoang ke ho eketsoa ho feteletseng ha sodium carbonate le sodium hydroxide ho eketsa boleng ba pH bakeng sa metsi a fepang boiler e fapane

Ho eketsa sodium carbonate e ngata haholo metsing a boiler ho lokisa boleng ba pH ho tla eketsa letsoai la metsi a pitsa le conductivity; Ho na le li-ion tse ngata tsa bicarbonate metsing a pitsa, 'me li-ion tsa bicarbonate li bola habonolo ho ba carbon dioxide ha li futhumatsoa. ​​CO2 e kena ka har'a exchanger ea mocheso 'me e kopanya metsi le mouoane. Sodium carbonate ha e khone feela ho fetola boleng ba pH ba metsi a khutlang a mouoane le mouoane, empa hape e fokotsa boleng ba pH ba mouoane le condensate, e senya mocheso le phaephe ea condensate. Lebaka leo ka lona li-ion tsa tšepe metsing a khutlang a condensate ea mouoane li fetang 'mala o tloaelehileng o mosehla kapa o mofubelu.

Ho eketsa sodium hydroxide e ngata haholo metsing a sebopi ho lokisa boleng ba pH ho tla etsa hore alkali ea metsi a pitsa e be holimo haholo, 'me metsi le soda li tla hlaha. Bongata ba sodium hydroxide ha bo bonolo ho bo laola, 'me NaOH e lokolohileng haholo e tla baka alkalinity e kholo, 'me alkali e tla boela e bake mafome lisebelisoa. Mongoli o bone tanka ea polasetiki e matlafalitsoeng ka khalase e tletseng li-patches sebakeng sa mosebelisi, e ileng ea senyeha le ho phunyeletsoa ka lebaka la tšebeliso ea sodium hydroxide ho laola boleng ba pH ba mafome. Sodium hydroxide e ke ke ea fetola boleng ba pH ba metsi a khutlang ka mouoane le mouoane, 'me e ke ke ea laola mafome a sistimi ea metsi a khutlang ka mouoane le mouoane le marang-rang a liphaephe.

4.3 Polokeho ea sodium carbonate le sodium hydroxide tse sebelisoang metsing a boiler ho eketsa boleng ba pH e fapane

Sodium carbonate e bobebe haholo, ke ea thepa ea sehlopha sa lijo, e hlohlelletsa hanyane, e senyeha hanyane, e tloaelehile e ka angoa ka letsoho, e hloka ho roala liatlana nako e telele.

Sodium hydroxide ke thepa e kotsi, e senyang, 'me tharollo ea eona kapa lerōle le fafalitsoeng letlalong, haholo-holo lera la mucous, le ka hlahisa makhopho a bonolo, 'me le ka kenella liseleng tse tebileng. Ho chesa ho siea lebali. Ho phatloha ka leihlong, ha ho senye cornea feela, empa hape ho senya lisele tse tebileng tsa leihlo. Ka hona, mosebelisi o lokela ho sebelisa setlolo se sa nke lehlakore le se nang le hydrophobic letlalong, 'me o tlameha ho apara liaparo tsa mosebetsi, limaske, likhalase tse sireletsang, liatlana tsa rabara, liaprone tsa rabara, lieta tse telele tsa rabara le lisebelisoa tse ling tsa tšireletso ea mosebetsi ho etsa mosebetsi o motle oa tšireletso ea botho.

Ho na le linyeoe tsa tšebeliso le liteko tse bontšang: Sodium hydroxide le sodium carbonate li sebelisoa ka mokhoa o fapaneng, kapa li tsoakiloe, moruo le phello ea tsona li betere ho feta ho sebelisa taolo e itseng ea pH feela. Ha boleng ba pH ba metsi a fepang boiler bo fumanoa bo le tlase haholo, sodium hydroxide e ka eketsoa ka nepo ho eketsa boleng ba pH kapele. Kamora hore sodium hydroxide e qhibilihe ka botlalo, sodium carbonate e ka eketsoa ho phahamisa carbonate ka metsing. Sena se ka nolofatsa ho theoha ha boleng ba pH ba metsi a fepa; Hobane bongata ba sodium carbonate bo ka kenngoa ho feta, bokhoni ba ho boloka li-carbonate ka metsing bo bongata, kahoo hangata sodium carbonate e ka sebelisoa ho boloka boleng ba pH ba phepelo ea metsi le metsi a lipitsa, ha feela boleng ba pH ba metsi bo le tlase haholo, mongoli o khothaletsa tšebeliso ea sodium hydroxide ho eketsa boleng ba pH ka potlako, e le hore tse peli li kopane ka mokhoa o fapaneng, ka bobeli ka phello ea moruo le e ntle.